It wasn't long ago that the number 'trillion' was considered made up. You know, like gazillion. Well, what with all this economic kerfuffle going on, it has been brought to our attention as a real number after all.
In fact, I get confronted with the term 'trillion' every time I turn on the TV. If I had a nickel for every time I've heard it recently, I'd have enough to pay off the world's debts and thus no longer be confronted with the term 'trillion' every time I turn on the TV.
Anyway, it's no longer an unimaginably large number. You don't even need to imagine it, because
here's a site that shows what a trillion dollars looks like (using Google Sketchup).

That's a person in the bottom left corner. This is quite an easy scene for Zimbabweans to imagine. This is what it looks like every time they buy a pint of milk.